Display device having driving initialization transistors and diode initialization transistor

Abstract

A display device may include a plurality of pixel circuits disposed adjacent to each other, the plurality of pixel circuits including a plurality of active patterns disposed to correspond to the pixel circuits, respectively. Each of the active patterns includes a first initialization channel region to which an initialization voltage is applied, a second initialization channel region to which the initialization voltage is applied, and a third initialization channel region to which the initialization voltage is applied, the second initialization channel region of each of the active patterns is connected to the first initialization channel region of the adjacent active patterns, and a first end region of the third initialization channel region is connected between the first initialization channel region and the second initialization channel region.

What is claimed is: 
     
       1. A display device, comprising:
 a plurality of pixel circuits disposed adjacent to each other, the plurality of pixel circuits including a plurality of active patterns disposed to correspond to the pixel circuits, respectively, 
 wherein each of the active patterns includes a first initialization channel region to through which an initialization voltage is transferred, a second initialization channel region through which the initialization voltage is transferred, and a third initialization channel region through which the initialization voltage is transferred, a first end region of the third initialization channel region being connected between the first initialization channel region and the second initialization channel region, and 
 wherein a second initialization channel region in a first pixel circuit is directly connected to a first initialization channel region of a second pixel circuit disposed adjacent to the first pixel circuit. 
 
     
     
       2. The display device of  claim 1 , wherein the plurality of pixel circuits are arranged along a plurality of pixel rows extending in a first direction and a plurality of pixel columns extending in a second direction crossing the first direction, the active patterns corresponding to one pixel row are connected to each other, and the active patterns corresponding to one pixel column are connected to each other. 
     
     
       3. The display device of  claim 1 , wherein the each of the active patterns further includes an initialization control signal transmission line extending in one direction and disposed on the active patterns, and
 wherein the initialization control signal transmission line overlaps a part of the first initialization channel region, a part of the second initialization channel region, and a part of the third initialization channel region. 
 
     
     
       4. The display device of  claim 3 , wherein the each of the active patterns further includes an initialization voltage transmission region connected to a second end region opposite to the first end region of the third initialization channel region. 
     
     
       5. The display device of  claim 4 , wherein the each of the active patterns further includes a driving channel region through which driving current corresponding to a data signal flows, and
 wherein the display device further includes a driving gate electrode disposed on the driving channel region of the active pattern to overlap the driving channel region and applying the initialization voltage. 
 
     
     
       6. The display device of  claim 5 , the each of the active patterns further includes a connection electrode disposed on the initialization voltage transmission region and the driving gate electrode, and connecting the initialization voltage transmission region and the driving gate electrode. 
     
     
       7. The display device of  claim 5 , wherein each of the plurality of pixel circuits includes a capacitor electrode disposed on the driving gate electrode, and wherein a power voltage is applied to the capacitor electrode. 
     
     
       8. The display device of  claim 1 , wherein the each of the active patterns further includes an initialization voltage transmission line extending in one direction, applying the initialization voltage, and disposed on the active patterns, and
 wherein the initialization voltage transmission line overlaps a part of the first initialization channel region. 
 
     
     
       9. The display device of  claim 8 , wherein the first pixel circuit and the second pixel circuit disposed adjacent to each other along the one direction. 
     
     
       10. The display device of  claim 9 , wherein the initialization voltage is applied from the initialization voltage transmission line to the first initialization channel region of the first pixel circuit, and
 wherein a second initialization channel region of the first pixel circuit receives the initialization voltage from the first initialization channel region of the second pixel circuit. 
 
     
     
       11. The display device of  claim 8 , wherein each of the plurality of pixel circuits further includes a connection electrode disposed on the initialization voltage transmission line, and
 wherein the connection electrode connects the initialization voltage transmission line and the first initialization channel region of the active pattern. 
 
     
     
       12. The display device, comprising:
 a first pixel circuit; and 
 a second pixel circuit disposed adjacent to the first pixel circuit along a first direction and connected to the first pixel circuit, 
 wherein the first pixel circuit includes a first active pattern, the first active pattern including a first initialization channel region through which an initialization voltage is transferred, and a second initialization channel region through which the initialization voltage is transferred, 
 wherein the second pixel circuit includes a second active pattern, the second active pattern including a third initialization channel region through which the initialization voltage is transferred and a fourth initialization channel region through which the initialization voltage is transferred, and 
 wherein the third initialization channel region is directly connected to the second initialization channel region and the initialization voltage is transferred from the third initialization channel region to the second initialization channel region. 
 
     
     
       13. The display device of  claim 12 , further comprising:
 a third pixel circuit disposed adjacent to the first pixel circuit along a second direction crossing to the first direction and electrically connected to the first pixel circuit, 
 wherein the third pixel circuit includes a third active pattern connected to the first active pattern. 
 
     
     
       14. The display device of  claim 12 , wherein each of the first pixel circuit and the second pixel circuit further includes an initialization control signal transmission line extending in the first direction, applying a gate signal, and disposed on the first active pattern and the second active pattern, and
 wherein the initialization control signal transmission line overlaps the first to third initialization channel regions. 
 
     
     
       15. The display device of  claim 14 ,
 wherein the first active pattern includes a fifth initialization channel region connected between the first initialization channel region and the second initialization channel region, and a first initialization voltage transmission region connected to the fifth initialization channel region, 
 wherein the second active pattern includes a sixth initialization channel region connected between the third initialization channel region and the fourth initialization channel region, and a second initialization voltage transmission region connected to the sixth initialization channel region, and 
 wherein the initialization control signal transmission line overlaps a part of the fifth initialization channel region and a part of the sixth initialization channel region. 
 
     
     
       16. The display device of  claim 15 ,
 wherein the first active pattern includes a first driving channel region through which driving current corresponding to a first data signal flows and the second active pattern includes a second driving channel region through which driving current corresponding to a second data signal flows, and 
 wherein the display device further includes a first driving gate electrode disposed on the first driving channel region, overlapping the first driving channel region, and applying the initialization voltage, and a second driving gate electrode disposed on the second driving channel region, overlapping the second driving channel region, and applying the initialization voltage. 
 
     
     
       17. The display device of  claim 16 , wherein the each of the first pixel circuit and the second pixel circuit further includes a first connection electrode disposed on the first initialization voltage transmission region and the first driving gate electrode, and connecting the first initialization voltage transmission region and the first driving gate electrode, and a second connection electrode disposed on the second initialization voltage transmission region and the second driving gate electrode, and connecting the second initialization voltage transmission region and the second driving gate electrode. 
     
     
       18. The display device of  claim 16 , wherein the each of the first pixel circuit and the second pixel circuit further includes a capacitor electrode disposed on the each of the first driving gate electrode and the second driving gate electrode and applying a power voltage. 
     
     
       19. The display device of  claim 12 , further comprising:
 an initialization voltage transmission line extending along a first direction, applying the initialization voltage, and disposed on the first active pattern and the second active pattern, 
 wherein the initialization voltage transmission line overlaps a part of the first initialization channel region and a part of the third initialization channel region. 
 
     
     
       20. The display device of  claim 19 ,
 wherein the initialization voltage is applied to the first initialization channel region from the initialization voltage transmission line, and 
 wherein the second initialization channel region transfers the initialization voltage from the third initialization channel region. 
 
     
     
       21. The display device of  claim 20 , wherein the each of the first pixel circuit and the second pixel circuit further includes a first connection electrode disposed on the initialization voltage transmission line and connecting the initialization voltage transmission line and the first initialization channel region, and a second connection electrode disposed on the initialization voltage transmission line and connecting the initialization voltage transmission line and the third initialization channel region.